Senior Front-End Engineer (offline)

Responsibilities:
- Develop modern cross-platform responsible financial SPA.
- Participate in design and planning discussions, contribute architecture ideas.
- Develop and test new user-facing features.
- Write highly scalable, reusable and testable code.
- Ensure the technical feasibility of UI/UX design.
- Optimize application for maximum speed and performance.
- Collaborate with other team members.

Requirements:
- 5+ years of experience with Javascript
- 3+ years of front-end development experience in building large, complex, highly scalable React-based single page web applications.
- Knowledge of Agile principles, open-source ecosystem.
- Experience in OOP and MVC design and development patterns. Good understanding of data structures and design patterns.
- Comfortable with source version control software and package managers (Git, NPM).
- Knowledge and understanding of client-side architecture best practices.
- Competent JavaScript programmer who doesn't need to rely on libraries to accomplish innovative interactions.
- Experience with CSS3 and Less/Sass (ability to write mixings, partials, use source maps, etc). Deep understanding of Mobile-first Responsive design. Experience with Twitter Bootstrap or Foundation Framework.
- Understanding of the interplay between JavaScript and HTML & CSS, with a focus on performance. Strong proficiency in JavaScript / ES6, including DOM manipulation and the JavaScript object model. Good understanding of browser rendering behavior. Familiarity with newer specifications of EcmaScript.
- Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
- Expert level hands on experience and understanding of React.js and its core principles. Proficiency in building reusable components and modules. Experience with popular React.js workflows (such as Flux or Redux, CSS-in-JS).
- Possess and understanding of all major browsers and the special considerations required for all various quirks. Knowledge of browser internals like Javascript engines, native DOM, Event APIs and ways to tune code for the best performance.
- Deep understanding of the HTTP protocol, browser networking.
- Advanced English reading / writing / speaking

Would be a plus:
- Experience working in a UNIX environment.
- You've built and delivered an app on Amazon AWS, Microsoft Azure or Google Cloud Platform.
- Experience with PWAs, Service Workers and client-side caching.
- Experience in web standards, semantic web, accessibility and SEO and the interplay between them.
- Having a Github portfolio or link to open source work.

We offer:
- Flexible working hours
- A competitive salary and good compensation package
- Best hardware
- A masseur and a corporate doctor
- Healthcare & sport benefits
- An inspiring, comfy, clean and safe office

Professional growth:
- Challenging tasks and innovative projects
- Meetups and events for professional development
- An individual development plan
- Mentorship program

Fun:
- Corporate events and outstanding parties
- Exciting team buildings
- Memorable anniversary presents
- A fun zone where you can play video games, foosball, ping pong, and more

About N-iX

N-iX is an international software development service company that helps businesses across the globe expand their engineering capabilities and develop successful software products. Founded in 2002, we have come a long way and increased our presence in eight countries spanning Europe, the US and Latin America.
With more than 2,000 specialists, N-iX offers expert solutions in cloud computing, data analytics, machine learning, business intelligence, embedded software, and IoT, covering a wide variety of sectors including finance, manufacturing, supply chain, telecom, energy, etc.

Company website:
https://careers.n-ix.com/

DOU company page:
https://jobs.dou.ua/companies/n-ix/